John 4:3

Yet while acting thus in regard of His Humanity, He did not allow His Divinity to be overcast. And so, after His departure He again employed the same language as before. For He went not away into Galilee simply, but in order to effect certain important matters, those among the Samaritans; nor did He dispense these matters simply, but with the wisdom that belonged to Him, and so as not to leave to the Jews any pretense even of a shameless excuse for themselves.

"When therefore Jesus knew how the Pharisees had heard that Jesus made and baptized more disciples than John, (though Jesus Himself baptized not but His disciples,) He left Judaea, and departed again into Galilee." He indeed baptized not, but they who carried the news, desiring to excite their hearers to envy, so reported. "Wherefore then departed He?" Not from fear, but to take away their malice, and to soften their envy. He was indeed able to restrain them when they came against Him, but this He would not do continually, that the Dispensation of the Flesh might not be disbelieved. For had He often been seized and escaped, this would have been suspected by many; therefore for the most part, He rather orders matters after the manner of a man. And as He desired it to be believed that He was God, so also that, being God, He bore the flesh; therefore even after the Resurrection, He said to the disciple, "Handle Me and see, for a spirit hath not flesh and bones"; therefore also He rebuked Peter when he said, "Be it far from Thee, this shall not be unto thee." So much was this matter an object of care to Him. For this is no small part of the doctrines of the Church; it is the chief point of the salvation wrought for us; by which all has been brought to pass, and has had success, for it was thus that the bonds of death were loosed, sin taken away, and the curse abolished, and ten thousand Blessings introduced into our life. And therefore He especially desired that the Dispensation should be believed, as having been the root and fountain of innumerable goods to us.

(Hom. xxxi. 2) Christ on withdrawing from Judæa, joined those whom He was with before, as we read next, And departed again into Galilee. As the Apostles, when they were expelled by the Jews, went to the Gentiles, so Christ goes to the Samaritans. But, to deprive the Jews of all excuse, He does not go to stay there, but only takes it on His road, as the Evangelist implies by saying, And he must needs go through Samaria. Samaria receives its name from Somer, a mountain there, so called from the name of a former possessor of it. The inhabitants of the country were formerly not Samaritans, but Israelites. But in process of time they fell under God's wrath, and the king of Assyria transplanted them to Babylon and Media; placing Gentiles from various parts in Samaria in their room. God however, to show that it was not for want of power on His part that He delivered up the Jews, but for the sins of the people themselves, sent lions to afflict the barbarians. This was told the king, and he sent a priest to instruct them in God's law. But not even then did they wholly cease from their iniquity, but only half changed. For in process of time they turned to idols again, though they still worshipped God, calling themselves after the mountain, Samaritans.

Our Lord left Judaea also mystically, i. e. He left the unbelief of those who condemned Him, and by His Apostles, went into Galilee, i. e. into the ficklenessa of the world; thus teaching His disciples to pass from vices to virtues.